mirror of
https://github.com/clearlinux/graphene.git
synced 2026-08-19 04:07:39 +00:00
borysp
c24bddd5aa
Change log (most important only):
- unify CPU context structures - now we have only one version -
`PAL_CONTEXT` - which is shared between LibOS and PALs and it should
depend only on the host architecture (not OS),
- syscalls emulation changed:
- dedicated LibOS stack is now used for syscalls emulation,
- removed one indirection level in syscalls table - now it stores
`shim_do_*` functions directly,
- signal handling - completely rewritten:
- all signal queues use proper locking schemes now,
- signals are handled *only* when returning to the user app from LibOS
or PAL,
- nested signals are now possible,
- the app is allowed to jump out of signal handler with the same
sematics as on normal Linux,
- signal altstack is now fully supported,
- syscall restarting is now supported,
- doing a backtrace from the signal handler works properly,
- disallow injecting host-level signals, with one exception, see
`sys.enable_sigterm_injection` manifest option for more details.
15 lines
308 B
C
15 lines
308 B
C
/* SPDX-License-Identifier: LGPL-3.0-or-later */
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/*
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* This file contains definitions for CPU context.
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*/
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#ifndef _SHIM_CONTEXT_H_
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#define _SHIM_CONTEXT_H_
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void shim_xstate_init(void);
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uint64_t shim_xstate_size(void);
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void shim_xstate_restore(const void* xstate_extended);
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#endif /* _SHIM_CONTEXT_H_ */
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